[Pkg-octave-devel] Bug#814554: octave: Saving figure to a PNG or PDF file gives black plot area when using gnuplot graphics

[Andrei Demekhov]

Package: octave
Version: 4.0.0-5+b3
Severity: important

Dear Maintainer,

I obtain plots with fully black plot area when using gnuplot backend and 
saving figures to PNG or PDF files (by either saveas or print). It 
probably started to happen after upgrading to gnuplot5. It is pity because 
the gnuplot toolkit is superior to FLTK or QT with respect to special font 
and font effects (sub/superscripts) handling. Note that gnuplot 
itself/standalone works fine.

According to http://savannah.gnu.org/bugs/?42838, something similar (but only
for PDFs) was discussed upstream and was considered fixed.

Best regards
Andrei



-- System Information:
Debian Release: stretch/sid
   APT prefers unstable
   APT policy: (500, 'unstable'), (500, 'testing'), (500, 'stable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.3.0-1-amd64 (SMP w/4 CPU cores)
Locale: LANG=ru_RU.UTF-8, LC_CTYPE=ru_RU.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages octave depends on:
ii  libamd2.4.1                      1:4.4.6-1
ii  libarpack2                       3.1.3-3+b1
ii  libasound2                       1.0.28-1
ii  libatlas3-base [liblapack.so.3]  3.10.2-9+b1
ii  libblas3 [libblas.so.3]          3.6.0-2
ii  libc6                            2.21-3
ii  libcamd2.4.1                     1:4.4.6-1
ii  libccolamd2.9.1                  1:4.4.6-1
ii  libcholmod3.0.6                  1:4.4.6-1
ii  libcolamd2.9.1                   1:4.4.6-1
ii  libcxsparse3.1.4                 1:4.4.6-1
ii  libfftw3-double3                 3.3.4-1
ii  libfftw3-single3                 3.3.4-1
ii  libfltk-gl1.3                    1.3.3-4
ii  libfltk1.3                       1.3.3-4
ii  libfontconfig1                   2.11.0-6.3
ii  libfreetype6                     2.6.1-0.1
ii  libgcc1                          1:5.3.1-3
ii  libgl1-mesa-glx [libgl1]         11.1.1-2
ii  libglpk36                        4.53-1
ii  libglu1-mesa [libglu1]           9.0.0-2
ii  libgomp1                         5.3.1-3
ii  libgraphicsmagick++-q16-12       1.3.23-1
ii  libgraphicsmagick-q16-3          1.3.23-1
ii  liblapack3 [liblapack.so.3]      3.6.0-2
ii  liboctave3v5                     4.0.0-5+b3
ii  libosmesa6                       11.1.1-2
ii  libportaudio2                    19+svn20140130-1
ii  libqhull6                        2012.1-4
ii  libqrupdate1                     1.1.2-1
ii  libqscintilla2-12v5              2.9+dfsg-8
ii  libqt4-network                   4:4.8.7+dfsg-5
ii  libqt4-opengl                    4:4.8.7+dfsg-5
ii  libqtcore4                       4:4.8.7+dfsg-5
ii  libqtgui4                        4:4.8.7+dfsg-5
ii  libsndfile1                      1.0.25-10
ii  libstdc++6                       5.3.1-3
ii  libumfpack5.7.1                  1:4.4.6-1
ii  libx11-6                         2:1.6.3-1
ii  octave-common                    4.0.0-5
ii  texinfo                          5.1.dfsg.1-5

Versions of packages octave recommends:
ii  default-jre-headless                           2:1.7-52
ii  gnuplot-qt [gnuplot-x11]                       4.6.6-3
ii  gnuplot5-qt [gnuplot-qt]                       5.0.3+dfsg1-1
ii  libatlas3-base                                 3.10.2-9+b1
ii  octave-info                                    4.0.0-5
ii  oracle-java8-installer [default-jre-headless]  8u66+8u65arm-1~webupd8~1
ii  pstoedit                                       3.62-2+b4

Versions of packages octave suggests:
pn  octave-doc      <none>
pn  octave-htmldoc  <none>

-- debconf information:
Unescaped left brace in regex is deprecated, passed through in regex; marked by <-- HERE in m/^(.*?)(\\)?\${ <-- HERE ([^{}]+)}(.*)$/ at /usr/share/perl5/Debconf/Question.pm line 72.
Unescaped left brace in regex is deprecated, passed through in regex; marked by <-- HERE in m/\${ <-- HERE ([^}]+)}/ at /usr/share/perl5/Debconf/Config.pm line 30.